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孙金墀 (北京市建筑设计研究院 北京 100045)
[提要] 混凝土结构植筋锚固的使用受多种因素制约,植筋锚固材料的耐久性、稳定性、耐火性、使用部位、钢筋锚固长度、锚固区混凝土的约束等在设计时都应慎重考虑。文中还对专用水泥的部颁标准《无收缩快硬硅酸盐水泥》( ZBQ11009-88)配制的浆锚砂浆用于钢筋铺固、搭接的试验研究做了介绍。
[关键词] 耐火性 结构部位 锚固长度 锚固区约束 浆锚砂浆Glued joints for steel bars applied in concrete structure are limited by many factors, including fire resistance and stability, position in the structure, anchorage length of steel bars, confinement of concrete, which should be considered when designing. In addition, this paper introduces the mortar of glued joints mixed with Non-shrinkage quick-harcl ening Portland cement ( ZBQ11009-88) and the experimental research of its application in anchorage of steel bars and lapped splices.
Keywords: glued joints; fire resistance; anchorage length; steel bar; concrete; limit anchor area; mortar